Gizmodo reports that Sony is indeed releasing their OLED touchscreen walkman - the NWZ X1000. It has internet capabilities via Wi-Fi and comes in a 16GB or 32GB version.

Sony walkman NWZ X1000

Update - We've got some more info and a video mini review

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Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters